The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 28, 2022
Filed:
Mar. 19, 2021
Nxp Usa, Inc., Austin, TX (US);
Sai-Wang Tam, Sunnyvale, CA (US);
Alden C. Wong, Sunnyvale, CA (US);
Weiwei Xu, Cupertino, CA (US);
Yui Lin, Palo Alto, CA (US);
Jue Yu, Cupertino, CA (US);
Sridhar Reddy Narravula, Cupertino, CA (US);
Yi-Ling Chao, Sunnyvale, CA (US);
Dipen Bakul Parikh, Fremont, CA (US);
NXP USA, Inc., Austin, TX (US);
Abstract
Various embodiments relate to a cancellation circuit configured to generate a cancellation signal, including: an attenuator configured to attenuate a transmitted signal from an aggressor transmitter based upon a first attenuation value; an I/Q demodulator configured to split an attenuated signal into in-phase (I) and quadrature signals (Q); a phase interpolator configured to apply a calibration phase shift and a calibration attenuation to the I signal and Q signal and to recombine the I and Q signals; an auxiliary balun coupled to an output of the phase interpolator; and an auxiliary power amplifier with an input connected to the auxiliary balun configured to generate the cancellation signal, wherein the output of the auxiliary power amplifier is connected to an output of a victim transmitter.